7. At the beginning there were 90 milligrams of a radioactive substance. After 3 hours, there were only 30 milligrams of that substance left. If the speed of decay is proportional to the amount of the substance present in time t, show That the remaining amount after 6 hours is 10 milligrams.
7. At the beginning there were 90 milligrams of a radioactive substance. After 3 hours, there were only 30 milligrams of that substance left. If the speed of decay is proportional to the amount of the substance present in time t, show That the remaining amount after 6 hours is 10 milligrams.
Chapter6: Exponential And Logarithmic Functions
Section6.7: Exponential And Logarithmic Models
Problem 23SE: A substance has a half-life of 2.045 minutes. If the initial amount of the substance was 132.8...
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7. At the beginning there were 90 milligrams of a radioactive substance. After 3 hours, there
were only 30 milligrams of that substance left. If the speed of decay is proportional to the
amount of the substance present in time t, show That the remaining amount after 6 hours is 10 milligrams.
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